The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 02, 2024
Filed:
Jan. 27, 2021
Corning Incorporated, Corning, NY (US);
Craig John Mancusi Ungaro, Corning, NY (US);
Corning Incorporated, Corning, NY (US);
Abstract
A method for processing a transparent workpiece that includes directing a laser beam into the transparent workpiece. A portion of the laser beam directed into the transparent workpiece comprises a laser beam focal line and generates an induced absorption to produce a defect within the transparent workpiece. The laser beam focal line includes a wavelength λ, a spot size w, a Rayleigh range Zthat is greater than where Fis a value of 10 or greater, and an internal focal line angle of greater than 10°. The laser beam focal line further comprises a circular angular spectrum within the transparent workpiece and a plurality of rays. Each individual ray of the plurality of rays has a same phase, ϕ, when converging to form the circular angular spectrum within the transparent workpiece.